In any state, push the key TIME to set time for music appreciation, and initial time is 10 minutes. Push again to select 20/30/40/50/60 minutes.
Music appreciation mode (10 songs for choice)
In any mode, push SOUND to access the demonstration mode and start playing chords/natural sounds and colored lamp displays starry sky image with change of music rhythms, and timing starts as per preset time for music appreciation time.
Dynamic projection of colored starry sky accompanied with music rhythms.